St. Clair County, Missouri facts for kids
Quick facts for kids
St. Clair County
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St. Clair County courthouse in Osceola
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Location within the U.S. state of Missouri
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 Missouri's location within the U.S. |
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| Country |  United States |
| State |  Missouri |
| Founded | January 29, 1841 |
| Named for | Arthur St. Clair |
| Seat | Osceola |
| Largest city | Appleton City |
| Area | |
| • Total | 702 sq mi (1,820 km2) |
| • Land | 670 sq mi (1,700 km2) |
| • Water | 32 sq mi (80 km2) 4.6% |
| Population
(2020)
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| • Total | 9,284 |
| • Density | 13.225/sq mi (5.106/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 4th |
St. Clair County is a county located in the western part of Missouri. A county is like a smaller division of a state. In 2020, about 9,284 people lived here.
The main town, or county seat, is Osceola. The biggest city in the county is Appleton City.
St. Clair County was started in 1841. It was named after General Arthur St. Clair. He was an important leader in early American history. He was also the 9th president of the United States in Congress Assembled. During his time as president, important laws like the Northwest Ordinance and the United States Constitution were passed.
For many years, starting in 1870, St. Clair County had a big disagreement. They refused to pay back money for a railroad that was never built. This was a long-standing problem for the county.
Contents
Geography of St. Clair County
St. Clair County covers a total area of 702 square miles. Most of this land is dry land, about 670 square miles. The rest, about 32 square miles, is water. This means about 4.6% of the county is covered by water.
Neighboring Counties
St. Clair County shares its borders with several other counties:
- Henry County (north)
- Benton County (northeast)
- Hickory County (east)
- Polk County (southeast)
- Cedar County (south)
- Vernon County (southwest)
- Bates County (northwest)
Main Roads
These are the most important highways that run through St. Clair County:
U.S. Route 54
Route 13
Route 52
Route 82
Public Transport
- Jefferson Lines provides bus services.
People of St. Clair County (Demographics)
| Historical population | |||
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| Census | Pop. | %± | |
| 1850 | 3,556 | — | |
| 1860 | 6,812 | 91.6% | |
| 1870 | 6,742 | −1.0% | |
| 1880 | 14,125 | 109.5% | |
| 1890 | 16,747 | 18.6% | |
| 1900 | 17,907 | 6.9% | |
| 1910 | 16,412 | −8.3% | |
| 1920 | 15,341 | −6.5% | |
| 1930 | 13,289 | −13.4% | |
| 1940 | 13,146 | −1.1% | |
| 1950 | 10,482 | −20.3% | |
| 1960 | 8,421 | −19.7% | |
| 1970 | 7,667 | −9.0% | |
| 1980 | 8,622 | 12.5% | |
| 1990 | 8,457 | −1.9% | |
| 2000 | 9,652 | 14.1% | |
| 2010 | 9,805 | 1.6% | |
| 2020 | 9,284 | −5.3% | |
| U.S. Decennial Census 1790–1960 1900–1990 1990–2000 2010–2015 |
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Demographics is the study of a population. It looks at things like how many people live somewhere, their ages, and their backgrounds.
In 2000, there were 9,652 people living in St. Clair County. The population density was about 14 people per square mile. Most people, about 97.36%, were White. About 0.75% were Native American. A small number were Black, Asian, or Pacific Islander. About 1.21% were from two or more races. About 0.98% of the people were Hispanic or Latino.
There were 4,040 households in the county. A household is a group of people living together. About 26.30% of these households had children under 18. Many households, 57.60%, were married couples. About 14.80% of households had someone living alone who was 65 or older.
The average age of people in the county was 44 years old. About 23% of the population was under 18. About 21.3% were 65 or older.
The median income for a household was $25,321. This means half of the households earned more, and half earned less. About 19.60% of the people in the county lived below the poverty line. This included 25.30% of those under 18.
2020 Census Information
Here's a look at the different groups of people in St. Clair County from the 2020 census:
| Race | Num. | Perc. |
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| White (NH) | 8,567 | 92.3% |
| Black or African American (NH) | 26 | 0.3% |
| Native American (NH) | 63 | 0.67% |
| Asian (NH) | 19 | 0.2% |
| Pacific Islander (NH) | 7 | 0.08% |
| Other/Mixed (NH) | 424 | 4.57% |
| Hispanic or Latino | 178 | 2% |
Education in St. Clair County
St. Clair County has several schools and libraries for its residents.
Public Schools
- Appleton City R-II School District – Appleton City
- Appleton City Elementary School (Kindergarten–5th grade)
- Appleton City High School (6th–12th grade)
- Hudson R-IX School District – Appleton City
- Hudson Elementary School (Preschool–8th grade)
- Osceola Public Schools – Osceola
- Osceola Elementary School (Preschool–6th grade)
- Osceola High School (7th–12th grade)
- Roscoe C-1 School District – Roscoe
- Roscoe Elementary School (Preschool–8th grade)
- Lakeland R-III School District – Lowry City & Deepwater
- Lakeland Elementary School
Public Libraries
- Appleton City Public Library
- St. Clair County Library-Main Library (Osceola)
- St. Clair County Library-Lowry City Branch
Communities in St. Clair County
St. Clair County has several towns and smaller communities.
Cities
- Appleton City
- Lowry City
- Osceola (This is the county seat)
Villages
Unincorporated Communities
These are smaller places that are not officially organized as cities or villages.
Townships
St. Clair County is divided into 16 townships. Townships are smaller areas used for local government.
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See also
In Spanish: Condado de St. Clair (Misuri) para niños
